The prefix mega means million (1,000,000) and the prefix giga means billion (1,000,000,000). So a gigawatt hour is a thousand megawatt hours.
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A gigawatt-hour is a unit of energy equal to one billion watt-hours, while a megawatt is a unit of power equal to one million watts. The main difference is that gigawatt-hour measures energy capacity over time, whereas megawatts measure power output at a specific moment.
The power output of wind power varies depending on factors like wind speed, turbine size, and efficiency. On average, a single wind turbine can generate between 2 to 3 megawatts of electricity per hour. Utility-scale wind farms can have a power output ranging from a few megawatts to hundreds of megawatts.
A large coal-fired power plant typically produces around 500-1000 megawatts of electricity per hour, depending on its size and efficiency.
To calculate the power needed to supply a city for 10 minutes, you would need to know the average power consumption of the city in megawatts. Once you have the average power consumption, you can multiply it by 10 minutes to determine the total energy required.
The amount of energy produced by a nuclear power plant in an hour can vary depending on its size and capacity. On average, a nuclear power plant can produce around 1,000 to 1,500 megawatt-hours of electricity per hour.
Velocity is a vector quantity that describes how fast and in what direction an object is moving. Momentum is also a vector quantity but represents the quantity of motion an object has. Momentum is calculated as the product of an object's mass and its velocity.